[w h] = size(I1);
for i = 1 : w
    for j = 1:h
        if I1(i,j)==255
           I1(i,j) =0;
        end
    end
end
subplot(231)
imshow(I1);

[w h] = size(I2);
for i = 1 : w
    for j = 1:h
        if I2(i,j)==255
           I2(i,j) =0;
        end
    end
end
subplot(232)
imshow(I2);
[w h] = size(I3);
for i = 1 : w
    for j = 1:h
        if I3(i,j)==255
           I3(i,j) =0;
        end
    end
end
subplot(233)
imshow(I3);
[w h] = size(I4);
for i = 1 : w
    for j = 1:h
        if I4(i,j)==255
           I4(i,j) =0;
        end
    end
end
subplot(234)
imshow(I4);

[w h] = size(I5);
for i = 1 : w
    for j = 1:h
        if I5(i,j)==255
           I5(i,j) =0;
        end
    end
end


subplot(235)
imshow(I5);



[w h] = size(m_I_t);
for i = 1 : w
    for j = 1:h
        if m_I_t(i,j)==255
           m_I_t(i,j) =0;
        end
    end
end
         
             
subplot(236)
imshow(m_I_t);